"Today, operating purely through self-interest is quite simply frowned upon," said the intergovernmental organization in a bulletin.

"Yet, when it comes to the supply of petroleum, there is a stubborn willingness of some non-OPEC producers to adopt a go-it-alone attitude, with scant regard for the consequences."

OPEC, which represents 12 countries but is dominated by top exporter Saudi Arabia, has steadfastly refused to cut output, despite the 50 percent tumble in Brent and WTI crude oil prices since June 2014.

Atef Hassan | Reuters

A worker adjusts the valve of an oil pipe at West Qurna oilfield in Iraq's southern province of Basra.

In its bulletin, OPEC said that its crude output had been stable over the last nine years, averaging 30 million barrels per day.

In comparison, non-OPEC production "led by the U.S. and Canada" surged by 6.3 million barrels per day in the same period, the body said.

"In the past, OPEC has often shouldered the burden of ensuring oil market stability alone. In the current situation, which should be of great concern to ALL, is it not time for this burden to be shared?" asked OPEC, which accounts for 40 percent of the world's crude oil output.

The boom in the U.S. in the production of shale oil—an "unconventional" energy source extracted from rock fragments through a process known as fracking—is seen as partially to blame for the plunge in oil prices.